Single Pane Low E Glass

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Good morning, although uncommon there are single pane Low E coated windows out there - the coating is fragile and often damaged but they do exist. Is there any way to model emissivity on single pane glass?

What if I choose double pane, add the lower emissivity, then input U-factor and SHGC for the single pane unit (attached screenshot)? Will eQuest grab the emissivity range (which I want) but the Ufactor and SHGC for single pane which I entered manually?

Thanks!
Mark

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Mark A. Carlson, CEM | Engineering Manager, Energy Solutions
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Mark
I would do as you say, but rename the glass to another name so it doesnt change a Library component in the Glass Library.

John R aulbach PE

------Original Message------
From: Mark at nationalglazingsolutions.com
To: "equest-users at lists.onebuilding.org"
Date: Monday, May 12, 2014 4:00:04 PM GMT+0000
Subject: [Equest-users] Single Pane Low E Glass

Good morning, although uncommon there are single pane Low E coated windows out there - the coating is fragile and often damaged but they do exist. Is there any way to model emissivity on single pane glass?

What if I choose double pane, add the lower emissivity, then input U-factor and SHGC for the single pane unit (attached screenshot)? Will eQuest grab the emissivity range (which I want) but the Ufactor and SHGC for single pane which I entered manually?

Thanks!
Mark

[Description: NGS_Logo_V2a_New]

Mark A. Carlson, CEM | Engineering Manager, Energy Solutions
Direct: 404.580-4639 | Toll Free: 866.925.2083 x 808
Fax: 866.966.4256 | Mark at NationalGlazingSolutions.com
NATIONAL GLASS FILMS & PRINTED GRAPHIC FILM SERVICES
WWW.NATIONALGLAZINGSOLUTIONS.COM
National Glazing Solutions was recognized as being the #1 commercial film dealer in the USA (window film mag sept 2013)
Click here < Tri-Shield Video> to witness the latest proprietary smash & grab protection system exclusively from NGS

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Another option is to use the LBNL Window program to get what you want. eQUEST imports a Window output file.

Vikram Sami
BEMP, LEED BD+C
Associate Partner

ZGF ARCHITECTS LLP
T 206.521.3509 E vikram.sami at zgf.com
925 Fourth Avenue, Suite 2400
Seattle, WA 98104

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I think this is a better approach, since the angular characteristics of single- versus
double-pane Low-E are probably different.
Speaking of using LBNL's Window program to create a custom Window file for use with eQUEST
though, I've noticed that the
Window files used by eQUEST are different from the ones (W4LIB.TMP) used by DOE-2.1E.
Have others noticed that, and how
does that interact with LBNL's Window program ?

Joe

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